Two-way door lock mechanism



March 12, 1957 F. R. COLLAR 2,784,993

' TWO-WAY DOOR LOCK MECHANISM Filed Oct. 26, 1953 3 Sheets-Sheet 1 UNLDCK 25b 241 3 95' I25 7 INVENTOR.

'FRAQNK R. COLLAR ATTORNEY March 12, 1957 F. R. COLLAR TWO-WAY DOOR LOCK MECHANISM Filed Oct. 26, 1953 3 Sheets-Sheet 2 IN V EN TOR.

FRANK R. COL AR ATTORNEY TWO-WAY DQQR LUCK MECHANISM Frank R. Collar, Los Angelles, Caiih, assignor to Adams Etc-Manufacturing. Company, Glendale, tlalih, a cor poration of California Application October 26, 1953, Serial No. 383,263 2 Claims. (Cl. 292-423) The present invention relates generally to locks, and ismore particularly concerned with locks of the flush type arranged for actuation from the opposite sides of a closure member with which the lock may be associated. This application includes subject matter disclosed in my application, Serial No. 748,356, filed May 1, 1947, now abandoned.

It is a primary object of the presentinvention to provide an improved lock of the herein described type having a flush type casing and actuating members on opposite sides so constructed that they will not form undesirable projections which might catch on ones clothing or other objects.

A further object is to provide a lock or latch constructed with its actuating members or handles as a unitary assembly which may be easily and simply installed, and wherein the bolt actuating mechanism is of suchnature that it. may be embodied into a relatively thin casing or housing.

Another object is to provide a locking device having manually operable actuating members arranged for unlatching movement in a direction corresponding with the directions of force required to open an associated closure means; That is, where the closure must be pulled to open, a pulling force will be applied to the actuating member; but where a pushing force is applied to open the closure, a pushing force will be applied to the actuating member.

It is also an object to provide a lock or latch assembly having a construction such that a variety of locking and indicating arrangements may be readily incorporated therewith to meet varied conditions of installation.

Further objects of the invention will be brought out in the following part of the specification, wherein detailed description is for the purpose of fully disclosing preferred embodiments of the invention without placing limitations on the scope of the invention defined in the appended claims.

Referring to the drawings which are for illustrative purposes only:

Fig. 1 is an elevational view of a portion of a closure member having a lock of the present invention mounted thereon, and showing its appearance as viewed looking toward its outer face plate;

Fig. 2 is a similar view, looking toward the inner face plate of the lock;

Fig. 3 is a longitudinal sectional view, taken. substantially on line 3-3 of Fig. 2;

Fig. 4 is an enlarged elevational view having the inner face plate removed to more clearly disclose the interior mechanism;

Fig. 5 is a transverse sectional view, certain parts being shown in full lines for clarity, taken substantially on line 5i-5 of Fig. 3;

Fig. 6' is a perspective view of a locking bar as utilized for locking the mechanism against manual. actua- [ion to move the bolt to retractile position, and further as an indicating medium;

Fig. 7 is an enlarged elevational view of a modified lock construction, portions of the casing. being cutaway to disclose the internal mechanism;

Fig. 8 is a transverse section, taken substantially on line 8-8 of Fig. 7;

Fig. 9 is a perspective view showing the details of construction of a locking bar as utilized in the modified form;

Fig. 10 is a plan view of an alternative adjustable casing or housing construction which may be utilized with the lock of the present invention;

Fig. 11 is an end elevational view of the same;

Fig. 12 is an elevational view of another modification of the lock construction .of my invention, with a portion of the casing thereof being cut away to disclose the internal mechanism;

Fig. 13 is a longitudinal sectional view taken substantially on the line ltd-13 of Fig. 12; and

Fig. 14 is a transverse sectional view taken substantially on line lit-14 of Fig. 13.

For illustrative purposes, there is shown in Figs. 1 and 2 a lock A embodying the features of the present invention, this lock being mounted on a closure member It This closure may be of any desired construction and, for purposes of description, may constitute a door supported for hinged movement in relation to an opening or passage.

More specifically, the lock comprises a casing as generally indicated by the numeral ll, this casing or housing being composed of an outer face plate 12 and an inner face plate 13. These face plates are supported in spaced apart relationship, being maintained in spaced relation by a wall structure, wherein top and bottom walls lid-44 cooperate with end walls 15 and 16 to form an interior compartment within which the lock mechanism is operatively disposed.

In the illustrated construction, the walls 14 and 15 are inwardly spaced slightly from the peripheral edges of the face plate 12 with which they are integrally formed so as to define a mounting flange for surface engagement with. the surface of the closure member upon which the lock is mounted. The end wall 16 is extended at its ends to form securing lugs l818 adapted to receive securing members. such as screws 19 through appropriate aperturesZtl to enable mounting of the locks on the closure member as shown. in Figs. 1 and 2. The inner face plate 13 in effect forms a removable cover which is arranged to be. secured against the outer edges of walls 14,15 and 16,. and may be retained in closure position by means of retaining. screws 21 arranged to extend through a. suitable wall aperture. such as shown at 22 and engage a lug. 23 carried by the face plate. In order to remove the face plate, it is then. only necessary to remove. the/screw or screws 21, whereupon the face plate may be lifted ofii As shown in Fig. 3,. each. of the face plates is provided with a recessed surface portion. The outer face plate 12 has a recess 24 which: is formed by a bottom portion 25 curving inwardly from the surface of the plate adjacent. the. wall 15. so as to be more or less inclined. The bottom 25 terminates at. its other side in an upturned edge flange 26. which is spaced from a downwardly extending flange. 27 at an edgezs of the opening. 29 to the recessed portion- A similar recess is formed. in the inner face plate 13.

Manually operable. actuators are associated with the recessed portions of the face plates 12 and 13 for the actuation of a bolt. 29-having a normal protractile position extending. through. an opening 30 intheendwall 16.

The actuator associated with the outer faceplatecomprises. a pull flap 31 having; amain plate portion 32-with end flange portions 33-33 adapted to abut the asso- '37 in a cut-out portion of the rib surrounds the pivot pin and is so connected that it will normaliy act to hold the pull flap in the position shown in Fig. 3 with its end flanged portion abutting the recessed bottom 25, but enabling outward swinging movement of the flap under pulling force. lized for actuating the bolt through a mechanism subsequently to be described.

A push flap 31 of similar construction to the pull flap is associated with the recessed portion of the inner face plate, this flap having the indicia Push applied as generally indicated by the numeral 34' to the outer surface of the main plate portion 32' thereof. The construction of the push flap 31 differs slightly, however, from that of the pull flap by having its end flange portion 33' abbreviated so that in normal position of the push flap, these end flanges do not abut the bottom of the associated recessed portion, but are spaced therefrom so as to permit inward swinging movement of the flap. The push flap in this case is pivotally supported on a pivot pin 36 which extends through the rib of the flap. As

indicated by the numeral 37, a spring is also provided in this case to bias the flap to a normal position in which its main plate portion is inclined with reference to the associated face plate 13, but which may be pivotally moved inwardly by a pushing force to actuate the bolt mechanism in a manner to be described subsequently.

As shown in Fig. 4, the bolt 29 is carried at one end of an arm 33 which is supported for pivotal movement on a pivot stud 39 projecting from the inner surface of the face plate 12, this pivotal mounting being intermediate the ends of the arm 38. The bolt 29 is normally coiled about the pivot stud and having one end bearing against the end wall 16, and its other bearing against a rear surface of the bolt 29.

Movement of the arm 38 to carry the bolt 29 to retractile position wherein it does not project beyond the end plate 16, is accomplished by means of a pull rod 41 and a push rod 42. The pull rod 41 has one end pivotally connected to the arm 38 between the bolt 29 and the pivot stud 39 so that by applying a force to the pull rod, which will move it to the right, as shown in Fig. 4, the bolt will be swung to retractile position. At its opposite end the pull rod 41 is provided with T-shaped end portion or shoulder 43 for engagement by projecting spaced finger portions id-44 constituting a part of the rib 35 of the pull flap 31. As thus arranged, when the pull flap 31 is pulled outwardly, projecting fingers 44 are swung in a direction to bear against the shoulder portion 43 and shift the pull rod longitudinally so as to actuate the bolt as previously explained.

The push rod 42 has one end pivotally connected to the arm 38 on the opposite side of the pivot stud from that on which the pull rod is connected, and has its other end provided with an enlarged portion or shoulder 45 spaced from the associated rod end. This enlarged portion forms an abutment for a pair of spaced fingers 46-46 which straddle the projecting end of the push rod. These fingers are integrally formed with the rib 35 of the push flap 31 and cooperate with the push rod in such a manner that inward swinging movement of the push flap 31' will push the rod 42 toward the left, as shown in Fig. 4, and actuate the bolt 29 to retractile position.

From the foregoing description, it will appear that with the lock structure thus far described mounted on a closure member, as shown in Figs. 1 and 2, the movement of the This movement of the flap is utipull flap and push flap will be in the same direction as the force which is applied to open the closure. That is, a person outside the closure will pull against the pull flap, the initial force acting to move the bolt 29 to retractile position and release the lock. The application of continued pulling force will then act to pull the closure to open position. On the other hand, if one is on the inside of the closure, the application of a pushing force against the push flap will act to initially withdraw the bolt 29 and move it to retractile position. Continued application of push g force will then swing the closure to open position.

A plurality of locking arrangements are susceptible of use with the lock described herein, depending upon installation conditions. That is, the lock may be arranged so that the locking mechanism may be actuated from the outside of the closure, the inside of the closure, or both. Moreover, if desired, the locking mechanism may be made key controlled and provided with indicating indicia, and also utilized to dead lock the bolt independent of the flaps or actuators.

A principal part of the locking mechanism resides in a locking bar 47, as illustrated in Fig. 6. This locking bar consists of a substantially flat or plate portion 48 having a pair of integrally formed spaced fingers 49 and 50 projecting from one side thereof, these fingers defining an open ended substantially U-shaped notch 51 in this end of the locking bar. The finger 50, it will be observed, is in raised relation with reference to the finger 49, and has a short right angled projection 52 at one end and a longer right angled projection 53 at its other end, this latter projection being deflected to form an end portion 5'4 extending parallel to the longitudinal axis of the finger 50. Intermediate the projections 52 and 53, the finger 54) is provided with an integrally formed upstanding post or stud 55. Another stud or post 56 is likewise formed adjacent the plate portion intermediate the inner ends of the fingers 4-9 and 56 this stud terminating at its uppermost end in a portion of square cross-section. The plate portion 48 contains a central rib 57 which extends transversely of the locking bar and is curved on its upper surface in the direction of the long axis thereof.

As shown in Fig. 4, the locking bar is positioned for sliding movement over the inner surface of the outer face plate between the flange 2'7 and a guide stud 58 formed as a part of the face plate. As thus positioned, the projections 52 and 53 at the ends of the finger 50 extend over the flange 27, and upon sliding movement of the locking plate, the end portion 54 will be in locked and unlocked positions with reference to the fingers 44 of the pull flap. in the locked position, the pull flap will be rendered in operative to actuate the pull rod and move the bolt 29 to retractile position. The locking bar is retained in position by means of a plate member 59 secured as by a screw 60 over edge portions of the fingers 49 and 50. The locking plate is retained in its locked and unlocked positions, respectively, by means of elongate leaf spring 61 anchored at one end by a securing screw 62 and having its opposite end disposed in the line of travel of the rib 57. In the unlocked position of the locking bar, the end of the spring 61 bears against the upper edge of the rib, but upon actuation of the locking bar to locking position, the end of the spring passes over the rib and snaps into a position on its other side so as to resiliently retain the locking bar in locked position.

As previously mentioned, various means may be providedfor actuating the locking bar. In the illustrated lock, means are provided for actuating the bar, either from outside the closure or inside the closure. In the illustrated arrangement, the 'bar may be actuated through the agency of a lock 63 having a cylinder 64 extending into the notch 51 between the two legs of the locking bar. As shown in Fig. 1, the lock includes a rotatable cylinder 65 provided with a notch or groove 66 at its outermost end for receiving the edge of a coin or other means which might be inserted to rotate the cylinder 65.

ass-aces The innermost end of the rotatable cylinder is provided with an arm 67 having an open ended notch 68 at its outermost end for receiving therein the stud 55 of the locking bar. Thus, rotation of the cylinder 65 in one direction will move the locking bar to locked position wherein the end portion 54 will be moved over one of the fingers 44 and thus prevent movement of the pull rod and actuation of the bolt 29 to retractile position. Rotation of the cylinder 65 in the opposite direction will move the locking bar to unlocked position. Of course it will be readily appreciated that a key controlled rotatable cylinder may be used, if desired. 7

For actuation of the locking bar from the inner side of the closure, a slot 63, as shown in Fig. 5, is provided in the inner face plate for the reception therethrough of the stud 56. The outer end of this stud carries a finger engageable knob 69 which may be moved upwardly or downwardly to actuate the locking bar to a locked or unlocked position, as desired.

As an additional feature, the locking bar construction makes it readily adaptable as an indicating medium to show, for example, that the area to which the closure provides access is Occupied or Vacant. This indication is accomplished by the provision of a window opening '70 in the outer face plate 12. The under face of the plate portion 48 of the locking bar is thus exposed, and indicia such as the words Occupied and Vacant may be inscribed thereon so as to be brought into view in the opening 7% upon selective movement of the locking bar to locked and unlocked positions.

As shown in Figs. 3 and 4, when the inner face plate is secured in position as a part of the casing or housing, the flanges 2727 of the associated face plate extend inwardly and cooperate to laterally retain the push rod 42, pull rod 41, and projections 52. and 53 in proper operative position. The other ends of the pull rod 41 and push rod 42, where pivotally connected with the arm 38, are retained by means of a plate member 71 secured in overlying position to theuppermost end of the pivot stud 39 by means of a retaining screw '72.

In the modified construction shown in Figs. 7, 8 and 9, parts having the same operative functions have been indicated by the same numerals as in the previously described construction, except that the numerals include a suflix a.

In this form of construction, the arm 38a carries a pin 73 having a peripheral groove '74 adapted to receive therein a crescent end portion 75 formed on the adjacent end of the associated push rod 420. In this arrangement movement of the push rod 42a to the left, as shown in Fig. 7, will cause movement of the bolt 29a to retractile position. On the other hand, when a closure having the lock installed thereon is moved to closed position, contact of the bolt with the usually associated strike will move the bolt to retractile position, the pin 73 being free for limited swinging movement out or" the cresecent end portion '75 during such operation.

The locking bar construction, as shown in Fig. 9, in the modified structure differs slightly from that previously described. The locking bar comprises a main locking arm 76 which is formed with a reduced end projecting finger portion 77 having an abutment shoulder 77' spaced from its end. At its opposite end, the arm 76 is formed with a right angular projecting pad portion 73 which serves as a bearing surface for steadying and assisting in maintaining the locking arm in edgewise position as operatively mounted in the lock mechanism. Extending outwardly from the opposite side of the locking arm is a connecting web portion 79 having a right angled plate portion 89 disposed in substantially parallel relation to the surface of the locking arm '76. The plate portion 89 is deflected to provide a right angled flange 81 along its uppermost edge and the material in the angle formed by the web 79 and plate 80 is extended upwardly to form an angular projecting arm 82 which extends above 6 the flange 81 for a purpose subsequently to be described.

As shown in Figs. 7 and 8, the locking bar 47a is positioned within the casing with the locking arm disposed edgewise and the pad 78 bearing against the-end wall 16a, this end wall being integrally formed with the face plates 12a and 13a from a continuous piece of plate material. The finger portion 77 is supported for longitudinal movements by being disposed in a groove 83 extending circumferentially around an end of a post 84 having its other end anchored to the face plate 12a. Lateral shifting of the locking bar is prevented, since the outermost edge of the pad '73 bears against the face plate 13a and the edge of the flange $1 bears against the face plate 12a. The arm 32 acts as a guide and retainer to prevent disconnection of the pivoted end of the pull rod dirt from the arm $86!. A leaf spring is supported on a. portion of the housing, this spring being formed with a ridge portion 5% which cooperates with an end of the flange 81 to retain the locking bar in locked or unlocked position. Movements of the locking bar cause the end of the flange to move from one side to the other of the ridge portion which thus acts as a spring detent. In locked position of the bar, the abutment shoulder 77 is moved into the groove 74 so as to be positioned in front of one end of the crescent portion 75 of the push rod 42a, whereby actuation of the push rod to move the bolt 29a to retractile position is prevented. It will be noted, however, that this does not lock the bolt against actuation by manipulation by actuation of the pull rod 41a.

As in the previously described construction, the modifled lock may also be locked either from the outside of the closure or inside of the closure. In the present arrangement, a knob 69a is mounted for sliding movement over the outer faceplate 12a, this knob being provided with a stem 87 which projects through aslot 88 in the face plate and has its projecting end inserted in a square opening in the plate portion 80, the stern being secured against removal by :a screw 3 9 in the flange 8i. Rectilinear movements of the knob 69a will therefore actuate the locking bar to locked and unlocked positions.

On the inside of the closure, the locking bar may be actuated by means of a key as indicated by the numeral 911, by means of which the rotatable cylinder 65a of a conventional key lock may be rotated. In this case the rotatable cylinder on its innermost end carries an. arm 67a which may be moved against the lower edge of the web 79 to move the locking bar into locked position or against the upper edge of this web to move the locking bar into unlocked position.

As an alternative construction for the casing, which may be embodied in either of the lock structures described above, there is disclosed in Figs. 10 and 11 a telescopic arrangement for the casing which permits adjustment of the face plates toward and away from each other in order to accommodate the casing for closure members of slight variation. in thickness.

As illustrated in Figs. 10 and 11, the face plates 12b and 13b are provided with end flanges 16]) adapted to be positioned in overlapping relation to form a closed side of the casing or the housing. One of these flanges is provided with apertures 26b for receiving securing members such as screws 1% for mounting the casing in operative position on a closure member. The other flange 16b is provided with an elongate slot 92 for association with each of the openings 2% and permit telescopic adjustment to bring the face plates into closer or greater spaced relation. Likewise, the opening 30b in one of the flanges 16b is made of greater width than the other to permit passage of the bolt 29 therethrough and. adjustment of the face plates relative to each other.

Cooperatively associated with the face plate structures, means are additionally provided for securing the surface plates relatively to each other in the areas of their receased portions 24b. Lugs 93 are struck up from the greases bottom portions 25b of each recessed area and to one of these is secured an internally threaded female member consisting of a stem or post 94. The other lug is apertured to receive therethrough a male threaded member such as a screw, as indicated by the numeral 95.

With the overlapping flanges 16b properly adjusted so that the face plates 12b and 13b will closely overlie the opposite surfaces of the closure member with which the lock is associated, the screw 95 is tightened with the result that the face plates 12b and 1311 are drawn into tight engagement with the outer surfaces of the closure member. This provides a very simple and desirable feature having particular advantage in permitting the casing to be accommodated to closure members of slightly varying thickness.

In the modified construction shown in Figs. 12 to 14 inclusive, the door latch includes but a single actuating rod for moving the bolt of the lock. In these figures, parts having the same operative functions as those parts previously described in connection with the above description of the lock shown in Figs. 1 to 5, have been indicated on the drawing by the same reference numerals as in the previously described construction, except that the numerals for Figs. 12 to 14 include a suffix b."

In this form of construction, the single actuating rod 101 is supported for reciprocating movement in the outer face plate 12b by means of a guide plate 102 which is welded or otherwise suitably attached to the inner face of the face plate 12b. One end of the actuating rod 101 is pivotally connected to the arm 38b at a part 103 on the arm spaced from the pivot 39b for the arm so that movement of the rod 101 toward or away from the end wall 16b will cause movement of the bolt 29b in the bolt opening 30b.

The other end of the rod 101 has a shoulder 104 for engagement with portions of a pull flap 105 and a push flap 106, which flaps correspond in function to the flaps 31 and 31' respectively. The pull flap 105 has a lever portion 107 extending from its innermost edge, this lever portion having a pivot pin 112 therein, which supports the pull flap 105 for pivotal swinging movement on the support member 108 which is welded or otherwise suitably attached to the upturned edge flange 26b of the bottom 25!) which forms the recess in the outer face plate. The lower end of the pull flap 105 is supported by the extension 109 thereof which is pivoted as shown at 110 in Fig. 14. Thus, when the flap 105 is grasped and pulled outwardly, it will swing on its pivots 110 and 112, thereby moving its lever portion 107 against the shoulder 104 to shift the rod 101 in a direction toward the end wall 16b to cause the bolt 2% to be retracted from the opening 30b.

The push flap 1.06 is pivotally supported on a pivot pin 3612 which extends through the rib 35b of the flap. The push flap 106 has an arm 114 extending from the rib 35b and arranged to engage the shoulder 104 of the actuating rod 101. Thus it is seen that when the push flap 106 is swung in a direction toward the outer face plate 121) on its pivot 36b, its extension 114 will operate as a lever against the shoulder 104 to move the actuating arm 101 in a direction toward the end wall 16b for retracting the bolt 29b and thereby permitting the door to open. It is clear therefore that the modification illustrated in Figs. 12 to 14 inclusive, comprises a bolt actuating means wherein the bolt 2% is moved to its retractile position against the resistance of the spring 4019 upon operation of either of the flaps 105 and 106.

I claim:

1. In a door lock: an outer face plate having an out- Wardly faced recess; a transverse wall at the front edge of said outer face plate; a bolt opening in said wall; an arm supported by said plate for swinging movement about a pivot; a bolt portion on said arm for projecting through said opening; spring means arranged to resist retractile movement of said bolt portion; a pull member swingably mounted in said recess and having a lever portion projecting therefrom; a pull rod, one end of said pull rod being pivotally connected to said arm at a part on said arm between said pivot and said bolt portion, said pull rod having shoulder means at its other end engageable with said lever portion for retracting said bolt portion from said opening against the resistance of said spring means when said pull member is swung outwardly from said recess; an inner face plate arranged and securable in spaced relation to said outer face plate and having an external recess therein; a push member swingably supported in the recess of said inner face plate and having a lever portion projecting therefrom; a push rod, one end of said push rod being pivotally connected to said arm at a part on said arm beyond said pivot from said bolt portion, said push rod having shoulder means at its other end engageable with said lever portion of said push member when said inner face plate is brought into said spaced relation to said outer face plate, said push member being operable through said push rod to retract said bolt portion from said opening against the resistance of said spring means upon swinging said push member inwardly of said external recess.

2. In a door lock: an outer face plate; a transverse wall at the front edge of said plate having a bolt opening therein; a bolt movably supported by said plate and having a portion which projects through said opening; spring means arranged to resist retractile movement of said belt; a pull member swingably mounted on said plate and having a lever portion projecting therefrom; a pull rod supported for reciprocating movement on said plate, one end of said pull rod being operatively associated with said bolt, said lever portion being engageable with the other end of said pull rod for retracting said bolt portion from said opening against the resistance of said spring means when said pull member is swung outwardly from said plate; an inner face plate securable in spaced relation to said outer face plate; a push member swingably mounted on said inner face plate and having a lever portion projecting therefrom; a push rod supported for reciprocating movement on said outer face plate, one end of said push rod being operatively associated with said bolt, the lever portion of said push member being brought into engagement with the other end of said push rod when said inner face plate is secured into said spaced relation to said outer face plate, said push member being operable through said push rod to retract said bolt portion from said opening against the resistance of said spring means when said push member is swung inwardly toward said outer face plate.

References Cited in the file of this patent UNITED STATES PATENTS 739,556 Oplinger Sept. 22, 1903 1,071,862 Becker Sept. 2, 1913 1,085,292 Palmer Jan. 27, 1914 1,563,489 Hooppaw et al. Dec. 1, 1925 1,882,248 Madsen Oct. 11, 1932 2,006,129 Craft June 25, 1935 2,006,263 Coomes June 25, 1935 2,201,444 Marsh May 21, 1940 2,240,524 Smith May 6, 1941 2,334,580 Prepelitza Nov. 16, 1943 ,337,187 Smith Oct. 16, 1945 ,485,042 Friend Oct. 18, 1949 2, 34,693 Adams Dec. 19, 1950 

